Exploration on the Technical Method of Modern Serpentine Jade Origin Tracing by Laser Raman Spectroscopy

Serpentine is one of the earliest jade materials used in Chinese history, and there is still no mature technical model for tracing the origins of serpentine jade through non-destructive testing. This article took serpentine jades produced in Hanzhong, Shaanxi Province, Dunhuang, Gansu Province, Luanchuan, Henan Province, Xiuyan, Liaoning Province, Tai'an, Shandong Province, and Wushan, Gansu Province as the objects, and explored the method of using laser Raman spectroscopy to trace the origins of modern serpentine jades. The results show that the accuracy of origin discrimination using LDA discriminant model for training set data and test set data reached 96.25% and 92.50%, respectively, indicating the potential value of using non-destructive Raman spectroscopy technology for tracing the origins of serpentine jades.